DRU-H-R
A high-accuracy dynamic reference unit delivering precision pointing, position, and attitude data for indirect mass fires and counter-fire operations — replacing the legacy DRU-H on Paladin and Firefinder with combat-proven inertial sensors shared across MLRS, HIMARS, and IPADS.
Platform position & attitude, in one unit
The DRU-H-R pairs high-performance RL34 ring laser gyros with GPS aiding — using a customer-provided Defense Advanced GPS Receiver (DAGR) or an optional embedded SAASM module — to deliver precision platform and weapon position and attitude data. Rated to 1000 g gunfire shock and qualified across manned, unmanned, rotational, wheeled, tracked, and shipboard platforms, it replaces the legacy DRU-H on Paladin and Firefinder with no compromise in ruggedness.
Combat-proven precision heritage
The DRU-H-R upgrades system performance with high-accuracy, combat-proven inertial sensors currently fielded on MLRS, HIMARS, and IPADS — delivering a sustainable, affordable system built to remain operationally effective well into the future.
Precision & Architecture
- High-performance RL34 ring laser gyros
- Common architecture shared with MLRS, HIMARS & IPADS
- Combat-proven heritage; fully qualified / U.S. government tested
GPS & Jamming Resistance
- GPS-aided via customer-provided DAGR or optional embedded SAASM
- Impervious to jamming in inertial mode
- Resistant to jamming in GPS-aided mode
Reliability & Survivability
- Embedded Built-In Test (BIT)
- High-reliability MTBF, low MTTR
- Rated to 1000 g gunfire shock; INWE & NBC survivable
Currently fielded on
The DRU-H-R delivers pointing and position information for direct and indirect fires, counterfire, and air-surveillance radar operations — across manned, unmanned, rotational, wheeled, tracked, battlefield, and shipboard environments.
M109 Paladin
- M109A6 & M109A7
- Direct & indirect fires
Firefinder Radar
- AN/TPQ-36 & AN/TPQ-37
- Counterfire operations
Long-Range Air Surveillance Radar
- AN/TPS-59-class systems
- Air-surveillance radar ops
Shared sensor heritage
The DRU-H-R's high-accuracy inertial sensors are the same combat-proven components currently fielded on the Multiple Launch Rocket System (MLRS), High-Mobility Artillery Rocket System (HIMARS), and Improved Position and Azimuth Determining System (IPADS).
Multiple Launch Rocket System
- M270-series launchers
- Shared sensor heritage
High-Mobility Artillery Rocket System
- M142 HIMARS
- Shared sensor heritage
Talk to a navigation
systems engineer
From datasheet questions to evaluation units, our team can help scope DRU-H-R for your platform.